Write a function that returns a number- given an uppercase letter- as

Write a function that returns a number, given an uppercase letter, as follows: def getNumber(uppercaseLetter):Write a test program that prompts the user to enter a phone number as a string. The input number may contain letters. The program translates a letter (upper- or lowercase) to a digit and leaves all other characters intact. Here is a sample run of the program: Enter a string: 1-800-Flowers 1-800-3569377 Enter a string: 1800flowers 18003569377